CN103527567B - Hydraulic fluid temperature control device and engineering machinery - Google Patents
Hydraulic fluid temperature control device and engineering machinery Download PDFInfo
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- CN103527567B CN103527567B CN201310529269.4A CN201310529269A CN103527567B CN 103527567 B CN103527567 B CN 103527567B CN 201310529269 A CN201310529269 A CN 201310529269A CN 103527567 B CN103527567 B CN 103527567B
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- hydraulic oil
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- temperature control
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Abstract
The invention discloses a kind of hydraulic fluid temperature control device and engineering machinery, relate to technical field of engineering machinery. Solve prior art and had hydraulic system lower technical problem of hydraulic actuator operating efficiency under the lower environment of temperature. This hydraulic fluid temperature control device, comprises thermal energy transfer device and heat energy exchange device, and thermal energy transfer device is connected with heat energy exchange device and thermal source respectively, and the thermal energy transfer that thermal source can discharge thermal source by thermal energy transfer device is to heat energy exchange device; Heat energy exchange device is connected with hydraulic oil container, and heat energy exchange device can conduct to hydraulic oil container by heat. This project machinery comprises oil pump, hydraulic actuator, hydraulic oil container and hydraulic fluid temperature control device provided by the invention. The present invention is for improving the operating efficiency of hydraulic actuator under the lower environment of temperature.
Description
Technical field
The present invention relates to technical field of engineering machinery, relate in particular to a kind of hydraulic fluid temperature control dressPut and arrange the engineering machinery of this hydraulic fluid temperature control device.
Background technology
Engineering machinery is the general name of the construction machinery to being applied to engineering construction. Hydraulic system is largeOne of important component part of most engineering machinery. Hydraulic system refers to using liquid and is situated between as workA kind of transmission system that confrontation energy transmits and controls.
At present, along with the propelling of China and even global modernization, most countries and areaAll carrying out engineering construction throughout the year. This just requires overall engineering machine, and (complete machine refers to completeOr entirety with electronic product single, separate unit form, below by overall engineering machine referred to as:Complete machine) hydraulic system can be effectively worked at the various weather conditions of the whole year.
At least there is following technical problem in prior art:
For most countries and area for, two season of summer in winter the temperature difference larger, fluid (for example:Hydraulic oil) fluid behaviour also therefore produce a lot of variation. So just make complete machine in the summer in winter twoDistinct service behaviour under the larger working environment of season or the temperature difference; Be embodied in: with the summerSeason or environment temperature higher state are compared, in the winter time or (equal below under the lower state of environment temperatureTake the Northern Hemisphere as example), when same power input, the hydraulic actuator such as the oil cylinder of complete machine (is called for shortFor executive component) responsiveness obviously slack-off, have a strong impact on performance and the work of overall performanceIndustry efficiency. Until complete machine work a period of time, hydraulic fluid temperature rises gradually, and overall performanceMay recover to some extent.
Therefore: prior art exists hydraulic system hydraulic pressure under the lower environment of temperature to carry outThe technical problem that element operating efficiency is lower.
Summary of the invention
One of them object of the present invention is propose a kind of hydraulic fluid temperature control device and establishPut the engineering machinery of this hydraulic fluid temperature control device, solved prior art and had hydraulic systemThe lower technical problem of hydraulic actuator operating efficiency under the lower environment of temperature.
Many technique effects that optimal technical scheme of the present invention can produce refer to below sets forth.
For achieving the above object, the invention provides following technical scheme:
Hydraulic fluid temperature control device provided by the invention, comprises thermal energy transfer device and heat energySwitch, wherein:
Described thermal energy transfer device is connected with described heat energy exchange device and thermal source respectively, andThe thermal energy transfer that described thermal source can discharge described thermal source by described thermal energy transfer device to described inHeat energy exchange device;
Described heat energy exchange device is connected with hydraulic oil container, and described heat energy exchange device can be byThermal energy conduction is to described hydraulic oil container.
At one, preferably or alternatively in embodiment, described thermal source is the loose of engine or engineHot device.
At one preferably or alternatively in embodiment, described thermal energy transfer device and described heat energySwitch includes separately pipeline and is filled in the heat-transfer fluid in described pipeline, wherein:
The pipeline envelope of described thermal energy transfer device is loose in described engine or described engineOutside hot device;
The pipeline envelope of described heat energy exchange device is outside described hydraulic oil container;
The pipeline of described thermal energy transfer device is connected with the pipeline of described heat energy exchange device.
At one, preferably or alternatively in embodiment, the pipeline of described heat energy exchange device is snakelikePipe.
At one, preferably or alternatively in embodiment, described hydraulic fluid temperature control device also comprisesControl valve, wherein:
Described control valve is arranged on pipeline and the described thermal energy exchange dress of described thermal energy transfer deviceOn hydraulic oil path between the pipeline of putting, described control valve can be by closing valve or opening the mode of valveClose or open described hydraulic oil path.
At one, preferably or alternatively in embodiment, described control valve is magnetic valve, described hydraulic pressureOil temperature control device also comprises the temperature-detecting device being electrically connected with described control valve, wherein:
The temperature sensor of described temperature-detecting device contact with described hydraulic oil container or described inThe temperature sensor of temperature-detecting device stretches in the hydraulic oil in described hydraulic oil container;
The temperature that the temperature sensor of described temperature-detecting device detects exceedes predetermined temperature valueShi Suoshu temperature-detecting device can send and close valve signal described control valve, and described control valve receivesAfter the valve signal of described pass, can close described hydraulic oil path.
At one, preferably or alternatively in embodiment, described heat-transfer fluid is water.
At one, preferably or alternatively in embodiment, the position height of described hydraulic oil container is not less thanThe position height of described thermal source.
Engineering machinery provided by the invention, comprise oil pump, hydraulic actuator, hydraulic oil container withAnd the hydraulic fluid temperature control device that provides of the arbitrary technical scheme of the present invention, wherein:
The hydraulic oil outlet of described oil pump is connected with the hydraulic oil entrance of described hydraulic actuatorLogical, the hydraulic oil import of described oil pump and the outlet of the hydraulic oil of described hydraulic actuator all withDescribed hydraulic oil container is connected.
At one, preferably or alternatively in embodiment, described engineering machinery is engineering truck, described inHydraulic actuator is oil cylinder.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect:
In hydraulic fluid temperature control device provided by the invention, thermal source can pass through thermal energy transferThe thermal energy transfer that device discharges thermal source is to heat energy exchange device, and heat energy exchange device can be by heat energyConduct to hydraulic oil container, to realize the hydraulic oil heating in hydraulic oil container, hydraulic oil heats itRear temperature rise, so operating efficiency is also for greatly improving, so solved prior art existenceHydraulic system lower technology of hydraulic actuator operating efficiency under the lower environment of temperature is askedTopic.
Hydraulic fluid temperature control device provided by the invention is in most fluid pressure type engineering machineryIn all can play similar oil temperature control action; And be particularly suitable for those from starting or dispatch a carTo the engineering machinery of normal need of work certain hour, when this device busy, both effectively utilizedUnnecessary heat energy, can make again complete machine enter fast desirable duty.
Optimal technical scheme provided by the invention compared with prior art at least can produce as followsTechnique effect:
1, hydraulic oil plays energy transfer function in hydraulic system, the performance of temperature to its performancePlay vital effect, control its temperature well can make it bring into play desirable effect.
2, hydraulic fluid temperature control device carries out temperature using complete machine engine as thermal source to hydraulic oilDegree is controlled, and takes into full account the real work situation of complete machine and effectively utilizes.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the applicationA part, schematic description and description of the present invention is used for explaining the present invention, not structureBecome inappropriate limitation of the present invention. In the accompanying drawings:
The engineering truck that Fig. 1 is the hydraulic fluid temperature control device that the embodiment of the present invention is set providesA schematic diagram;
In the hydraulic fluid temperature control device that Fig. 2 provides for the embodiment of the present invention hydraulic oil container withThe schematic diagram of annexation between control valve, temperature sensor and thermal source;
Reference numeral: 1, thermal energy transfer device; 2, heat energy exchange device; 3, engine; 4,Hydraulic oil container; 5, radiator; 6, control valve; 7, temperature-detecting device; 8, oil pump; 9,Hydraulic actuator; 10, fluid pressure line; 11, engineering vehicle chassis.
Detailed description of the invention
Below can with reference to accompanying drawing Fig. 1～Fig. 2 and word content understand content of the present invention withAnd distinctive points between the present invention and prior art. Below by accompanying drawing and enumerate of the present inventionThe mode of some optional embodiment, to technical scheme of the present invention (comprising optimal technical scheme)Be described in further detail. It should be noted that: any technical characterictic in the present embodiment,Any technical scheme be all a kind of in the technical characterictic of plurality of optional or optional technical scheme orSeveral, cannot be exhaustive of the present invention all alternative in presents in order to describe succinct needsTechnical characterictic and alternative technical scheme, be also not easy to the embodiment of each technical charactericticAll emphasize that it is one of optional numerous embodiments, so those skilled in the art should know:Arbitrary technological means provided by the invention can be replaced or by provided by the invention any twoIndividual or more technological means or technical characterictic combine mutually and obtain new technical scheme.Any technical characterictic in the present embodiment and any technical scheme all do not limit protection of the present inventionScope, protection scope of the present invention should comprise that those skilled in the art do not pay creative workThe thinkable any alternate embodiments of institute and those skilled in the art are by provided by the inventionAnticipate that two or more technological means or technical characterictic combine mutually and the new technology that obtainsScheme.
The embodiment of the present invention provides one can improve as required hydraulic oil in hydraulic systemTemperature, hydraulic fluid temperature control device and the setting that improves hydraulic actuator operating efficiencyThe engineering machinery of this hydraulic fluid temperature control device.
Below in conjunction with Fig. 1～Fig. 2, technical scheme provided by the invention is carried out to more detailed explainingState.
As shown in Fig. 1～Fig. 2, the hydraulic fluid temperature control device that the embodiment of the present invention provides,Comprise thermal energy transfer device 1 and heat energy exchange device 2, wherein:
(thermal source is preferably and sends out thermal energy transfer device 1 with heat energy exchange device 2 and thermal source respectivelyMotivation 3) be connected, and the heat energy that thermal source can discharge thermal source by thermal energy transfer device 1 passesBe handed to heat energy exchange device 2.
Heat energy exchange device 2 is connected with hydraulic oil container 4, and heat energy exchange device 2 can be by warmCan conduct to hydraulic oil container 4.
Thermal energy transfer to the thermal energy exchange that thermal source can discharge thermal source by thermal energy transfer device 1 fillsPut 2, heat energy exchange device 2 can be by thermal energy conduction to hydraulic oil container 4, to realize hydraulic oil containerHydraulic oil heating in 4, temperature rise after hydraulic oil heating, so operating efficiency is also largeFor improving.
As preferably or alternatively embodiment of one, thermal energy transfer device 1 and thermal energy exchangeDevice 2 includes separately pipeline and is filled in the heat-transfer fluid in pipeline, and heat-transfer fluid is preferredFor water. Wherein: the pipeline envelope of thermal energy transfer device 1 is loose in engine 3 or engine 3Outside hot device 5, the pipeline of thermal energy transfer device 1 is preferably envelope in the radiator of engine 3Outside 5.
The pipeline envelope of heat energy exchange device 2 is outside hydraulic oil container 4. Heat energy exchange device 2Pipeline be preferably coiled pipe. The pipe of the pipeline of thermal energy transfer device 1 and heat energy exchange device 2Road is connected.
The thermal energy transfer device 1 of said structure and heat energy exchange device 2 have with low cost,Advantage simple in structure and heat transfer efficiency is high.
As preferably or alternatively embodiment of one, hydraulic fluid temperature control device also comprises controlValve 6 processed, wherein:
Control valve 6 is arranged on the pipeline of thermal energy transfer device 1 and the pipeline of heat energy exchange device 2Between hydraulic oil path on, control valve 6 can be closed or be opened by the mode of closing valve or drive valveHydraulic oil path.
In the time that control valve 6 closes valve, control valve 6 is arranged on the pipeline and heat of thermal energy transfer device 1Hydraulic oil path blockade (or claiming: cut-off) between the pipeline of energy switch 2, thus canTo stop flowing of heat-transfer fluid, and then also can stop the transmission of heat energy, avoid hydraulic oil containerHydraulic oil in 4 heats up, otherwise, in the time that control valve 6 is driven valve, heat-transfer fluid in pipeline fromBy flowing, heat energy can be passed to hydraulic oil container 4 by heat-transfer fluid fast thus, thereby makes liquidHydraulic oil in force feed case 4 heats up.
As preferably or alternatively embodiment of one, control valve 6 is magnetic valve, hydraulic oil temperatureDegree control device also comprises the temperature-detecting device 7 being electrically connected with control valve 6, wherein:
The temperature sensor of temperature-detecting device 7 contacts with hydraulic oil container 4 or temperature detection dressPutting 7 temperature sensor stretches in the hydraulic oil in hydraulic oil container 4.
The temperature when temperature that the temperature sensor of temperature-detecting device 7 detects exceedes predetermined temperature valueDegree checkout gear 7 can send and close valve signal control valve 6, and control valve 6 receives pass valve signalAfter can close hydraulic oil path.
Temperature-detecting device 7 be arranged so that hydraulic fluid temperature control device provided by the inventionAutomaticity greatly improves. Predetermined temperature value can be set arbitrarily according to actual needs.
As preferably or alternatively embodiment of one, the position height of hydraulic oil container 4 is not less thanThe position height of thermal source. The heat-transfer fluid density high due to temperature can diminish and then rise, soWhen the position height of hydraulic oil container 4 is not less than the position height of thermal source, be conducive to heat-transfer fluid courtHydraulic oil container 4 flows and transferring heat energy.
The engineering machinery that the embodiment of the present invention provides, this project machinery is preferably engineering truck, figureIn 1, mark the chassis 11 of this project vehicle. This project machinery comprises that oil pump 8, hydraulic pressure holdsThe hydraulic fluid temperature control that units 9, hydraulic oil container 4 and the arbitrary technical scheme of the present invention provideDevice processed, wherein:
The hydraulic oil outlet of oil pump 8 and the hydraulic oil of hydraulic actuator (being preferably oil cylinder) 9Entrance is connected, the hydraulic oil import of oil pump 8 and the outlet of the hydraulic oil of hydraulic actuator 9All be connected with hydraulic oil container 4.
Hydraulic fluid temperature control device provided by the invention can improve hydraulic fluid temperature, Jin ErtiThe execution efficiency of high hydraulic actuator 9, and then the suitable hydraulic system that is applied to engineering machineryIn operating efficiency when improving it and work in the lower environment of temperature.
Below concentrate explanation hydraulic fluid temperature control device provided by the invention to be applied to engineering machineOperation when tool:
Engine 3 constantly distributes heat energy in operation process, by the radiator 5 of engine 3Obtain heat energy Q, via intermediate links such as thermal energy transfer device 1 and heat energy exchange devices 2 by heat energyQ1 (Q1 < Q) passes to the hydraulic oil in hydraulic oil container 4, makes hydraulic fluid temperature T increase gradually;
When the thermal energy transfer through after a while, hydraulic oil reaches suitable temperature T1(T1 > T0),The hydraulic system of complete machine can be brought into play its performance preferably; At this moment, hydraulic oil temperature control device canTo quit work, avoid oil temperature too high and affect the performance of hydraulic system performance. Mentioned aboveThe meaning of partial parameters can see the following form 1:
Table 1
| Parameter meaning | Explanation |
| The heat energy that Q engine radiator obtains | Come from engine |
| The heat energy that Q1 hydraulic oil absorbs | Q1<Q |
| T0 hydraulic oil initial temperature | Lower |
| The suitable temperature that T1 hydraulic system is required | T1>T0 |
| The real-time hydraulic oil oil temperature of T | Real-time change |
The disclosed arbitrary technical scheme of the invention described above unless otherwise stated, if it disclosesNumber range, so disclosed number range is preferred number range, any this areaTechnical staff is appreciated that preferred number range is only technology in many enforceable numerical valueThe numerical value that effect is obvious or representative. Because numerical value is more, cannot be exhaustive, soThe present invention just discloses part numerical value to illustrate technical scheme of the present invention, and, above-mentioned rowThe numerical value of lifting should not form the restriction to the invention protection domain.
If used the word such as " first ", " second " to limit parts herein,Those skilled in the art should know: the use of " first ", " second " is only used to justIn describing above, parts are distinguished as not having outside Stated otherwise, above-mentioned word is not specialImplication.
Meanwhile, if the invention described above discloses or has related to parts or the knot of connection fastened to each otherMember, so, unless otherwise stated, is fixedly connected with and can be understood as: can dismantle and fixConnect (for example using bolt or screw to connect), also can be understood as: be non-removable fixingConnect (for example rivet, weld), certainly, connection fastened to each other can be also integral type structure(for example use casting technique is integrally formed to be created) institute replaces (obviously cannot adopt oneExcept forming technology).
In addition, applied for representing position in the disclosed arbitrary technical scheme of the invention described aboveThe term of relation or shape unless otherwise stated its implication comprises with it approximate, similar or approachingState or shape. Arbitrary parts provided by the invention can be both by multiple independent partsAssemble the produced separate part of the technique that also can be one of the forming.
Finally should be noted that: above embodiment is only in order to illustrate technical scheme of the present inventionNon-to its restriction; Although the present invention is had been described in detail with reference to preferred embodiment, underThe those of ordinary skill in field is to be understood that: still can enter the specific embodiment of the present inventionRow is revised or part technical characterictic is equal to replacement; And do not depart from technical solution of the present inventionSpirit, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (8)
1. a hydraulic fluid temperature control device, is characterized in that, comprises thermal energy transfer device(1) and heat energy exchange device (2), wherein:
Described thermal energy transfer device (1) respectively with described heat energy exchange device (2) and thermal sourceBe connected, and described thermal source can discharge described thermal source by described thermal energy transfer device (1)Thermal energy transfer is to described heat energy exchange device (2);
Described heat energy exchange device (2) is connected with hydraulic oil container (4), and described heat energy is handed overChanging device (2) can be by thermal energy conduction to described hydraulic oil container (4); Described thermal source is engine(3) radiator (5); Described thermal energy transfer device (1) and described heat energy exchange device(2) include separately pipeline and be filled in the heat-transfer fluid in described pipeline, wherein:
The pipeline envelope of described thermal energy transfer device (1) is in the radiator of described engine (3)(5) outside;
The pipeline envelope of described heat energy exchange device (2) is outside described hydraulic oil container (4);
The pipeline of the pipeline of described thermal energy transfer device (1) and described heat energy exchange device (2)Be connected.
2. hydraulic fluid temperature control device according to claim 1, is characterized in that,The pipeline of described heat energy exchange device is coiled pipe.
3. hydraulic fluid temperature control device according to claim 1, is characterized in that,Described hydraulic fluid temperature control device also comprises control valve, wherein:
Described control valve is arranged on pipeline and the described thermal energy exchange dress of described thermal energy transfer deviceOn hydraulic oil path between the pipeline of putting, described control valve can be by closing valve or opening the mode of valveClose or open described hydraulic oil path.
4. hydraulic fluid temperature control device according to claim 3, is characterized in that,Described control valve is magnetic valve, and described hydraulic fluid temperature control device also comprises and described control valveThe temperature-detecting device of electrical connection, wherein:
The temperature sensor of described temperature-detecting device contact with described hydraulic oil container or described inThe temperature sensor of temperature-detecting device stretches in the hydraulic oil in described hydraulic oil container;
The temperature that the temperature sensor of described temperature-detecting device detects exceedes predetermined temperature valueShi Suoshu temperature-detecting device can send and close valve signal described control valve, and described control valve receivesAfter the valve signal of described pass, can close described hydraulic oil path.
5. hydraulic fluid temperature control device according to claim 1, is characterized in that,Described heat-transfer fluid is water.
6. according to the arbitrary described hydraulic fluid temperature control device of claim 1-5, its featureBe, the position height of described hydraulic oil container is not less than the position height of described thermal source.
7. an engineering machinery, is characterized in that, comprise oil pump, hydraulic actuator andThe arbitrary described hydraulic fluid temperature control device of claim 1-6, wherein:
The hydraulic oil outlet of described oil pump is connected with the hydraulic oil entrance of described hydraulic actuatorLogical, the hydraulic oil import of described oil pump and the outlet of the hydraulic oil of described hydraulic actuator all withDescribed hydraulic oil container is connected.
8. engineering machinery according to claim 7, is characterized in that, described engineering machineTool is engineering truck, and described hydraulic actuator is oil cylinder.
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| CN201310529269.4A CN103527567B (en) | 2013-10-31 | 2013-10-31 | Hydraulic fluid temperature control device and engineering machinery |
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| CN201310529269.4A CN103527567B (en) | 2013-10-31 | 2013-10-31 | Hydraulic fluid temperature control device and engineering machinery |
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| CN203784022U (en) * | 2013-10-31 | 2014-08-20 | 徐州徐工施维英机械有限公司 | Hydraulic oil temperature control device and engineering machine |
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| CN2683462Y (en) * | 2004-01-18 | 2005-03-09 | 江苏省机电研究所有限公司 | Vehicle hydraulic oil preheating device |
| CN102788048B (en) * | 2012-09-07 | 2015-05-20 | 三一重机有限公司 | Engineering mechanical hydraulic oil tank, control method thereof and engineering machine |
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| CN203784022U (en) * | 2013-10-31 | 2014-08-20 | 徐州徐工施维英机械有限公司 | Hydraulic oil temperature control device and engineering machine |
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